Cloth-cleaning device for sieves in bolting-machines.



Patnted Sept. 25, |900. J. C. MAUN. CLOTH CLEANING DEVICE FOR SIEVESINBDLTIIIG MACHINES (Application led June 23, 1900.)

2 Sheets-Shut I.

(No Model.)

r IIIIIIIIIIIII YNE NORIS PETERS C3, PHOTULITHC, WASHINGYON, D Cv No.658,385. Paientevd Sept. 25, |900.

J. C. MAUN.

CLOTH CLEANING DEVICE FUR'SIEVES IN BOLTING MACHINES.

(Application ld June 23, 1900.) (N0 MDIIBI.) 2 SIlBIS--SIIBO 2.

UNTTED STATES PATENT OFFICE.

JOHN CALVIN MAUN, OF MCCONNELLSBURG, PENNSYLVANIA.

CLOTH-CLEANING DEVICE FOR SIEVES IN BOLTlNG-MACHINES.

SPECIFICATION forming part of Letters Patent No. 658,385, datedSeptember 25, 1900.`

Application led June 23,1900. Serial No. 21,327. (No model.) Y

T0 all whom it may concern:

Be it known that I, JOHN CALVIN MAUN, a

citizen of the United States, residing at Mc- Connellsburg, in thecounty of Fulton and State of Pennsylvania, have invented certain newand useful Improvements in Cloth-Cleaning Devices for Sieves inBolting-Machines; and I do declare the following to be a full, clear,and exact description of the invention, such as will enable othersskilled in the art to which it appertains to make and use the same,reference being had to the accompanying drawings, and to the letters ofreference marked thereon, which form a part of this specification.

This invention relates to new and useful improvements in cloth-cleaningdevices for sieves used in grading and flour-boltin g mills; and theobject of the invention is to provide a means whereby the material to besifted is agitated by means of whipping-cords, which are operated bymeans of mechanism as the frame of the sieve or screen is given agyrating motion.

More specifically the invention comprises, in connection with the frameof a sieve or screen, a series of whipping-cords, which are held looselywithin the frame and are fixed at one end, while their opposite ends orlooped portions are mounted on the swinging edge of a hinged plate,which is adapted to be actuated by means of a weighted and pivotedangle-lever as the frame of the sieve is given a gyrating motion.

My invention will be hereinafter more fully described, and thenspecifically defined in the appended claim, and is clearly illustratedin the accompanying drawings, which, with the letters of referencemarked thereon, form part of this application, and in which drawingssimilar letters of reference indicate like parts throughout the severalviews, in which- Figure l is a bottom plan view of my improved devicefor cleaning the screen of iiourbolting sieves. Fig. 2 is a longitudinalsectional view through the sieve. Fig. 3 is an enlarged detail View ofthe angle-lever provided with an adjustable Weight. Fig. 4L is a detailView of the swinging plate.

Reference now being had to the details of the drawings by letter, Adesignates a casin g, in which a frame B of the sieve is held in anysuitable manner. This sieve is provided with a screen C, ofbolting-cloth, and mounted on a shaft D, held in the walls of thecasing, is a swinging plate E, having eyes E', which are pivoted on saidshaft D. Near the swinging edge of lsaid plate E are secured a series ofscrew-eyes Falong theinner face of said plate, and at the opposite endof the casing, mounted upon a plate H on the inner wall of the casing,is a similar series of screw-eyes K, and connecting said eyes on theswinging edge of the plate E to the stationary eyes K is a series ofcords L, or, if preferred, thesecords may consist of a single piece,which is fastened at one of the outermost of said stationary eyes andpassed longitudinally of the casing and alternately back and forththrough the two sets of eyes, as shown in the drawings. These cordsnormally rest in a slack relation adjacent to the under surface of thescreen; but as the plate E is raised or swung upward by means Which willbe presently described said cords will be alternately raised and loweredor whipped against the under surface of the screen for the purpose ofcleaning the same and facilitating the sifting of the iiour through thebolting-cloth. Securely held between the two longitudinal strips M onthe inner walls of said casing is a plate or bracket N, the bent endsofwhich are fastened to said strips, and pivotally connected to saidplate N, preferably upon its upper surface, is an angle-lever R, whichis pivoted at R', and connecting the short end of said angle-lever withthe plate E is a link S, one end of which is pivoted to a screw-eye S',while its other end is pivoted to a pin S2 at the short end of saidangle-lever. The long free end of the angle-lever carries an adjustableweight Q, which may be held at different locations on said long arm andfastened in an adjusted position by means of a thumbscrew Q. As thecasing of the screen is gyrated it will be noted that the Weighted leverwill be caused to swing, and through its connections with the plate Ethe latter will be oscillated,which will agitate the whi pping-cords andcause the same to be raised and lowered and thrown gently against theunder surface of the screen, thus facilitating the sifting of the Hourwithout too violent an agitation.

Having thus described my invention, what IOO I claim to be new, anddesire to seeumlreby Let,- ters Patent, isf In combination with thecasing of a gyratory screen, a swinging plate mounted be.

tween the longitudinal Walls thereof, a series in gpivoted: linkeonneotone-between one arm thereof, and said. plate, :md a Weightedmelnlber adjnstably held at various locutions on A.tllelongarm of saidlever, as vshown and deof eyelets near the free swinging. edgethere- Vof, a. second series of eyelets at the opposite end of the frameadjacent to the screen, Cords connecting seid series of` eyelets, a.bracket secured to the frame of the sieve, an anglelever pivoted to saidbracket, said lever hav-

